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#ifndef EGLSYNC_INCLUDED
#define EGLSYNC_INCLUDED
#include "egltypedefs.h"
#include "egldisplay.h"
#ifdef EGL_KHR_reusable_sync
/**
* "Base" class for device driver syncs.
*/
struct _egl_sync
{
/* A sync is a display resource */
_EGLResource Resource;
EGLenum Type;
EGLenum SyncStatus;
};
PUBLIC EGLBoolean
_eglInitSync(_EGLSync *sync, _EGLDisplay *dpy, EGLenum type,
const EGLint *attrib_list);
extern _EGLSync *
_eglCreateSyncKHR(_EGLDriver *drv, _EGLDisplay *dpy,
EGLenum type, const EGLint *attrib_list);
extern EGLBoolean
_eglDestroySyncKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync);
extern EGLint
_eglClientWaitSyncKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
EGLint flags, EGLTimeKHR timeout);
extern EGLBoolean
_eglSignalSyncKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
EGLenum mode);
extern EGLBoolean
_eglGetSyncAttribKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
EGLint attribute, EGLint *value);
/**
* Link a sync to a display and return the handle of the link.
* The handle can be passed to client directly.
*/
static INLINE EGLSyncKHR
_eglLinkSync(_EGLSync *sync, _EGLDisplay *dpy)
{
_eglLinkResource(&sync->Resource, _EGL_RESOURCE_SYNC, dpy);
return (EGLSyncKHR) sync;
}
/**
* Unlink a linked sync from its display.
*/
static INLINE void
_eglUnlinkSync(_EGLSync *sync)
{
_eglUnlinkResource(&sync->Resource, _EGL_RESOURCE_SYNC);
}
/**
* Lookup a handle to find the linked sync.
* Return NULL if the handle has no corresponding linked sync.
*/
static INLINE _EGLSync *
_eglLookupSync(EGLSyncKHR handle, _EGLDisplay *dpy)
{
_EGLSync *sync = (_EGLSync *) handle;
if (!dpy || !_eglCheckResource((void *) sync, _EGL_RESOURCE_SYNC, dpy))
sync = NULL;
return sync;
}
/**
* Return the handle of a linked sync, or EGL_NO_SYNC_KHR.
*/
static INLINE EGLSyncKHR
_eglGetSyncHandle(_EGLSync *sync)
{
_EGLResource *res = (_EGLResource *) sync;
return (res && _eglIsResourceLinked(res)) ?
(EGLSyncKHR) sync : EGL_NO_SYNC_KHR;
}
/**
* Return true if the sync is linked to a display.
*
* The link is considered a reference to the sync (the display is owning the
* sync). Drivers should not destroy a sync when it is linked.
*/
static INLINE EGLBoolean
_eglIsSyncLinked(_EGLSync *sync)
{
_EGLResource *res = (_EGLResource *) sync;
return (res && _eglIsResourceLinked(res));
}
#endif /* EGL_KHR_reusable_sync */
#endif /* EGLSYNC_INCLUDED */
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